74c40c0a27
the core screenshot function now can capture the screen at any lower resolution performing bilinear filtering. we also now have some client code to interface with the screenshot service. it's now possible to request a screenshot at a lower resolution. Change-Id: I5a3b0e431421800e3aad601d9af8f94adffbc71f
64 lines
1.7 KiB
C++
64 lines
1.7 KiB
C++
/*
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* Copyright (C) 2010 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <utils/Log.h>
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#include <binder/IPCThreadState.h>
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#include <binder/ProcessState.h>
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#include <binder/IServiceManager.h>
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#include <binder/IMemory.h>
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#include <surfaceflinger/ISurfaceComposer.h>
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#include <SkImageEncoder.h>
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#include <SkBitmap.h>
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using namespace android;
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int main(int argc, char** argv)
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{
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if (argc != 2) {
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printf("usage: %s path\n", argv[0]);
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exit(0);
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}
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const String16 name("SurfaceFlinger");
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sp<ISurfaceComposer> composer;
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getService(name, &composer);
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sp<IMemoryHeap> heap;
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uint32_t w, h;
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PixelFormat f;
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status_t err = composer->captureScreen(0, &heap, &w, &h, &f, 0, 0);
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if (err != NO_ERROR) {
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fprintf(stderr, "screen capture failed: %s\n", strerror(-err));
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exit(0);
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}
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printf("screen capture success: w=%u, h=%u, pixels=%p\n",
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w, h, heap->getBase());
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printf("saving file as PNG in %s ...\n", argv[1]);
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SkBitmap b;
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b.setConfig(SkBitmap::kARGB_8888_Config, w, h);
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b.setPixels(heap->getBase());
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SkImageEncoder::EncodeFile(argv[1], b,
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SkImageEncoder::kPNG_Type, SkImageEncoder::kDefaultQuality);
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return 0;
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}
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